/* Velletti Consulting - Global Styles */

/* CSS Custom Properties (Variables)
   Default colors can be overridden inline in PHP (index.php) via :root variables. */
:root {
  /* Colors */
  --color-primary: #F87060;
  --color-secondary: #102542;
  --color-background: #f7f7ff;
  --color-accent1: #e0e7ff;
  --color-accent2: #dbeafe;
  --color-text: #23272f;
  --color-white: #ffffff;
  --color-success: #22c55e;
  --color-error: #ef4444;

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Breakpoints */
  --breakpoint-tablet: 769px;
  --breakpoint-desktop: 1025px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Reset and Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: var(--font-size-base); }
body {
  font-family: var(--font-family-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 { line-height: 1.2; margin-bottom: var(--spacing-sm); font-weight: 700; }
h1 { font-size: 2.5rem; color: var(--color-secondary); }
h2 { font-size: 2rem;   color: var(--color-secondary); }
h3 { font-size: 1.5rem; color: var(--color-secondary); }
p { margin-bottom: var(--spacing-sm); }

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover, a:focus { color: var(--color-secondary); outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Layout Components */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm); }
.section { padding: var(--spacing-2xl) 0; }
.section--hero { padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-2xl); background: linear-gradient(135deg, var(--color-background) 0%, var(--color-accent1) 100%); min-height: 100vh; display: flex; align-items: center; }

/* Header Styles */
.header { position: fixed; top: 0; left: 0; right: 0; background: rgba(247, 247, 255, 0.95); backdrop-filter: blur(10px); z-index: 1000; padding: var(--spacing-sm) 0; border-bottom: 1px solid rgba(16, 37, 66, 0.1); }
.header__container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--color-secondary); text-decoration: none; letter-spacing: -0.025em; }
.logo:hover, .logo:focus { color: var(--color-primary); outline: none; }
.nav { display: flex; gap: var(--spacing-lg); }
.nav__link { font-weight: 500; padding: var(--spacing-xs) var(--spacing-sm); border-radius: 4px; transition: all var(--transition-fast); }
.nav__link:hover, .nav__link:focus { background-color: var(--color-primary); color: var(--color-white); outline: none; }

/* Mobile Menu */
.mobile-menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--color-secondary); cursor: pointer; padding: var(--spacing-xs); }
.mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-white); border-bottom: 1px solid rgba(16, 37, 66, 0.1); box-shadow: var(--shadow-lg); }
.mobile-menu .nav { flex-direction: column; padding: var(--spacing-sm); gap: 0; }
.mobile-menu .nav__link { display: block; padding: var(--spacing-sm); border-bottom: 1px solid rgba(16, 37, 66, 0.1); }

/* Hero Section */
.hero__content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero__title { font-size: 3rem; margin-bottom: var(--spacing-md); background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero__subtitle { font-size: 1.25rem; color: var(--color-text); margin-bottom: var(--spacing-xl); opacity: 0.8; }

/* Hero avatar (circular image) */
.hero-avatar { width: 160px; height: 160px; border-radius: 50%; object-fit: cover; display: block; margin: 0 auto var(--spacing-md); border: 4px solid var(--color-white); box-shadow: var(--shadow-lg); background: var(--color-white); }
@media (max-width: 480px) {
  .hero-avatar { width: 128px; height: 128px; }
}

.cta-button { display: inline-block; background: var(--color-primary); color: var(--color-white); padding: var(--spacing-md) var(--spacing-xl); border-radius: 8px; font-weight: 600; font-size: 1.1rem; text-decoration: none; transition: all var(--transition-normal); box-shadow: var(--shadow-md); }
.cta-button:hover, .cta-button:focus { background: var(--color-secondary); transform: translateY(-2px); box-shadow: var(--shadow-lg); outline: none; }

/* Services Section */
.services { background: var(--color-white); }
.services__grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-xl); margin-top: var(--spacing-xl); }
.service-card { background: var(--color-background); padding: var(--spacing-xl); border-radius: 12px; text-align: center; transition: all var(--transition-normal); border: 1px solid rgba(16, 37, 66, 0.1); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-icon { width: 80px; height: 80px; margin: 0 auto var(--spacing-md); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--color-white); }
.service-card h3 { color: var(--color-secondary); margin-bottom: var(--spacing-sm); }
.service-card p { color: var(--color-text); opacity: 0.8; }

/* Contact Section */
.contact { background: var(--color-background); }
.contact-form { max-width: 600px; margin: var(--spacing-xl) auto 0; background: var(--color-white); padding: var(--spacing-xl); border-radius: 12px; box-shadow: var(--shadow-md); }
.form-group { margin-bottom: var(--spacing-md); }
.form-label { display: block; margin-bottom: var(--spacing-xs); font-weight: 600; color: var(--color-secondary); }
.form-input, .form-textarea { width: 100%; padding: var(--spacing-sm); border: 2px solid rgba(16, 37, 66, 0.1); border-radius: 6px; font-size: 1rem; transition: border-color var(--transition-fast); background: var(--color-white); }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--color-primary); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-error { color: var(--color-error); font-size: 0.875rem; margin-top: var(--spacing-xs); }
.form-success { background: rgba(34, 197, 94, 0.1); color: var(--color-success); padding: var(--spacing-md); border-radius: 6px; margin-bottom: var(--spacing-md); border: 1px solid rgba(34, 197, 94, 0.2); }
.form-submit { background: var(--color-primary); color: var(--color-white); border: none; padding: var(--spacing-sm) var(--spacing-xl); border-radius: 6px; font-weight: 600; cursor: pointer; transition: all var(--transition-normal); font-size: 1rem; }
.form-submit:hover, .form-submit:focus { background: var(--color-secondary); outline: none; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Legal Sections */
.legal { background: var(--color-background); }
.legal h2 { margin-bottom: var(--spacing-sm); }
.legal h3 { margin-top: var(--spacing-sm); }
.legal p { opacity: 0.9; }

/* Footer */
.footer { background: var(--color-secondary); color: var(--color-white); padding: var(--spacing-xl) 0; text-align: center; }
.footer__content { margin-bottom: var(--spacing-md); }
.footer__contact { margin-bottom: var(--spacing-md); }
.footer__contact p { margin-bottom: var(--spacing-xs); }
.footer a { color: var(--color-accent1); }
.footer a:hover, .footer a:focus { color: var(--color-white); }

/* Responsive Design */
@media (max-width: 768px) {
  .nav { display: none; }
  .mobile-menu-toggle { display: block; }
  .hero__title { font-size: 2rem; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .container { padding: 0 var(--spacing-md); }
  .section { padding: var(--spacing-xl) 0; }
  .section--hero { padding: calc(80px + var(--spacing-lg)) 0 var(--spacing-xl); min-height: auto; }
  .contact-form { margin: var(--spacing-lg) auto 0; padding: var(--spacing-lg); }
}

@media (min-width: 769px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1025px) {
  .container { padding: 0 var(--spacing-lg); }
  .hero__title { font-size: 3.5rem; }
  h1 { font-size: 3rem; }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* Focus styles for keyboard navigation */
.service-card:focus { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Print styles */
@media print {
  .header, .mobile-menu { display: none; }
  .section--hero { padding: var(--spacing-lg) 0; min-height: auto; background: none; }
  * { background: transparent !important; color: black !important; box-shadow: none !important; }
}

/* Dark theme support */
:root[data-theme='dark'] {
  --color-background: #0d1117;
  --color-text: #e6edf3;
  --color-secondary: #e6edf3;
  --color-accent1: #1f2937;
  --color-accent2: #0b1220;
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
}

/* Header actions */
.header__actions { display: flex; align-items: center; gap: var(--spacing-sm); }
.social-buttons { display: flex; gap: var(--spacing-xs); }
.social-btn, .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 8px; border: 1px solid rgba(16,37,66,0.12); background: var(--color-white); color: var(--color-secondary); box-shadow: var(--shadow-sm); transition: transform var(--transition-fast), background var(--transition-fast); }
:root[data-theme='dark'] .social-btn, :root[data-theme='dark'] .theme-toggle { background: #161b22; border-color: rgba(255,255,255,0.1); color: var(--color-text); }
.social-btn:hover, .theme-toggle:hover { transform: translateY(-1px); }
.social-btn svg, .theme-toggle svg { width: 20px; height: 20px; }

/* Modals */
.modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; z-index: 2000; }
.modal[aria-hidden='false'] { display: flex; }
.modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.45); backdrop-filter: blur(2px); }
.modal__content { position: relative; max-width: 720px; width: calc(100% - 2rem); background: var(--color-white); color: var(--color-text); border-radius: 12px; box-shadow: var(--shadow-lg); padding: var(--spacing-lg); z-index: 1; }
:root[data-theme='dark'] .modal__content { background: #0f172a; }
.modal__header { display:flex; align-items:center; justify-content: space-between; margin-bottom: var(--spacing-md); }
.modal__title { font-size: 1.25rem; }
.modal__close { background: transparent; border: none; font-size: 1.5rem; line-height: 1; cursor: pointer; color: inherit; }
.modal__body { max-height: 70vh; overflow: auto; }
.badge-fallback { border: 1px solid rgba(16,37,66,0.12); border-radius: 12px; padding: var(--spacing-md); display: grid; grid-template-columns: 72px 1fr; gap: var(--spacing-md); align-items: center; }
.fallback-avatar { width:72px; height:72px; border-radius: 50%; background: linear-gradient(135deg,var(--color-accent1), var(--color-primary)); display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; }
.gh-profile { display:grid; grid-template-columns: 96px 1fr; gap: var(--spacing-md); align-items:flex-start; }
.repo-list { margin-top: var(--spacing-sm); display:grid; gap: var(--spacing-sm); }
.repo-card { border:1px solid rgba(16,37,66,0.12); border-radius:10px; padding: var(--spacing-sm); }
.repo-card a { font-weight:600; }
.chip { display:inline-flex; align-items:center; gap:6px; padding:2px 8px; border-radius:999px; background: rgba(16,37,66,0.06); font-size: 0.85rem; }
:root[data-theme='dark'] .repo-card { border-color: rgba(255,255,255,0.1); }

/* Dark theme readability fixes */
:root[data-theme='dark'] .contact-form { background: #0f172a; color: var(--color-text); }
:root[data-theme='dark'] .form-input,
:root[data-theme='dark'] .form-textarea { background: #0b1220; color: var(--color-text); border-color: rgba(255,255,255,0.1); }
:root[data-theme='dark'] .form-input::placeholder,
:root[data-theme='dark'] .form-textarea::placeholder { color: rgba(230,237,243,0.6); }
:root[data-theme='dark'] .form-label { color: var(--color-text); }
:root[data-theme='dark'] .form-error { color: #fca5a5; }
:root[data-theme='dark'] .form-success { background: rgba(34,197,94,0.12); border-color: rgba(34,197,94,0.25); color: #86efac; }
:root[data-theme='dark'] .footer { background: #0b1220; color: var(--color-text); }
:root[data-theme='dark'] .footer a { color: var(--color-primary); }
:root[data-theme='dark'] .footer a:hover,
:root[data-theme='dark'] .footer a:focus { color: var(--color-white); }
:root[data-theme='dark'] .header { background: rgba(13,17,23,0.95); border-bottom: 1px solid rgba(255,255,255,0.08); }
:root[data-theme='dark'] .logo { color: var(--color-text); }
:root[data-theme='dark'] .nav__link { color: var(--color-text); }
:root[data-theme='dark'] .mobile-menu { background: #0f172a; border-bottom: 1px solid rgba(255,255,255,0.08); }
:root[data-theme='dark'] .mobile-menu .nav__link { border-bottom: 1px solid rgba(255,255,255,0.08); }
:root[data-theme='dark'] .services { background: #0f172a; }

/* Experience/Events cards */
.cards-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--spacing-md); }
.profile-card, .event-card { border:1px solid rgba(16,37,66,0.12); border-radius:12px; padding: var(--spacing-md); background: var(--color-white); }
:root[data-theme='dark'] .profile-card, :root[data-theme='dark'] .event-card { background: #0f172a; border-color: rgba(255,255,255,0.1); }
.profile-card__header { display:flex; align-items:center; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.profile-card__icon { width:28px; height:28px; }
.event-card .title { font-weight:600; }
.event-card .meta { margin-top: 6px; display:flex; gap:8px; flex-wrap:wrap; }
.event-card .actions { margin-top: var(--spacing-sm); }
.small { font-size: 0.9rem; opacity: 0.85; }

.visually-hidden { position:absolute !important; height:1px; width:1px; overflow:hidden; clip:rect(1px,1px,1px,1px); white-space:nowrap; }

/* Minimal styles for contact.php HTML fallback */
.card { max-width: 640px; margin: 2rem auto; background: #fff; padding: 1.5rem; border-radius: 12px; border: 1px solid rgba(16,37,66,0.12); }
a.btn { display: inline-block; margin-top: 1rem; padding: .5rem 1rem; border-radius: 8px; background: var(--color-primary); color: #fff; text-decoration: none; transition: background var(--transition-fast); }
a.btn:hover { background: var(--color-secondary); }